The American Nurses Association (ANA) Social Policy Statement of 1980 was the first to define nursing as the diagnosis and treatment of human responses to actual and potential health problems. This definition, when combined with the ANA Standards of Practice, has provided impetus and support for the use of nursing diagnosis. Defining nursing and its effect on client care supports the growing awareness that nursing care is a key factor in client survival and in the maintenance, rehabilitative, and preventive aspects of healthcare. Changes and new developments in healthcare delivery in the last decade have given rise to the need for a common framework of communication to ensure continuity of care.